{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{3}{c}}
\hline\hline
                    &\multicolumn{3}{c}{Volunteer}                                    \\\cmidrule(lr){2-4}
\hline
Works for WPA       &       0.003\sym{***}&       0.003\sym{***}&       0.003\sym{***}\\
                    &     [0.000]         &     [0.000]         &     [0.000]         \\
Age FEs             &         Yes         &         Yes         &         Yes         \\
Individual controls &          No         &         Yes         &         Yes         \\
Birthplace FEs      &          No         &         Yes         &         Yes         \\
\hline
\(R^{2}\)           &       0.007         &       0.009         &       0.010         \\
Fixed effects       &      County         &      County         &      County         \\
Sample:             &$<$ high sch.         &$<$ high sch.         &$<$ high sch., CEM         \\
Mean dependent variable&       0.008         &       0.008         &       0.009         \\
Observations        &     3,791,971         &     3,791,971         &     2,782,676         \\
\hline\hline
\end{tabular}
}
